Surface area= Area of all the shapes added together Area of square =s^2 Area of triangle =bh/2 S=12 B=12 B is s H=8 12^2 =144 square 12×8= 96/2=48 triangle There are 4 triangles and 1 square 144+48+48+48+48=336 Answer is f hope that helps
The minimum number of train cars needed is 8 because 112 multiplied by 8 is 896 which means 7 trains will be full and the last one will only carry 108 crates
